Pieter P. Tans and Thomas J. Conway

Period of Record

Trends

The monitoring site at Ragged Point, Barbados is operated in cooperation with a
Private Party. Annual atmospheric CO2
mixing ratios at Ragged Point have risen from 351.57 parts per million (ppm)
in 1988 to 373.07 ppm in 2002. The record from Ragged Point exhibits a
seasonal cycle with the yearly minimum occurring in September or October
and yearly maximum measured during April or May.